1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
5 #include <linux/const.h>
6 #include <linux/types.h>
8 #define MPTCP_SUBFLOW_FLAG_MCAP_REM _BITUL(0)
9 #define MPTCP_SUBFLOW_FLAG_MCAP_LOC _BITUL(1)
10 #define MPTCP_SUBFLOW_FLAG_JOIN_REM _BITUL(2)
11 #define MPTCP_SUBFLOW_FLAG_JOIN_LOC _BITUL(3)
12 #define MPTCP_SUBFLOW_FLAG_BKUP_REM _BITUL(4)
13 #define MPTCP_SUBFLOW_FLAG_BKUP_LOC _BITUL(5)
14 #define MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED _BITUL(6)
15 #define MPTCP_SUBFLOW_FLAG_CONNECTED _BITUL(7)
16 #define MPTCP_SUBFLOW_FLAG_MAPVALID _BITUL(8)
19 MPTCP_SUBFLOW_ATTR_UNSPEC,
20 MPTCP_SUBFLOW_ATTR_TOKEN_REM,
21 MPTCP_SUBFLOW_ATTR_TOKEN_LOC,
22 MPTCP_SUBFLOW_ATTR_RELWRITE_SEQ,
23 MPTCP_SUBFLOW_ATTR_MAP_SEQ,
24 MPTCP_SUBFLOW_ATTR_MAP_SFSEQ,
25 MPTCP_SUBFLOW_ATTR_SSN_OFFSET,
26 MPTCP_SUBFLOW_ATTR_MAP_DATALEN,
27 MPTCP_SUBFLOW_ATTR_FLAGS,
28 MPTCP_SUBFLOW_ATTR_ID_REM,
29 MPTCP_SUBFLOW_ATTR_ID_LOC,
30 MPTCP_SUBFLOW_ATTR_PAD,
31 __MPTCP_SUBFLOW_ATTR_MAX
34 #define MPTCP_SUBFLOW_ATTR_MAX (__MPTCP_SUBFLOW_ATTR_MAX - 1)
36 /* netlink interface */
37 #define MPTCP_PM_NAME "mptcp_pm"
38 #define MPTCP_PM_CMD_GRP_NAME "mptcp_pm_cmds"
39 #define MPTCP_PM_EV_GRP_NAME "mptcp_pm_events"
40 #define MPTCP_PM_VER 0x1
43 * ATTR types defined for MPTCP
48 MPTCP_PM_ATTR_ADDR, /* nested address */
49 MPTCP_PM_ATTR_RCV_ADD_ADDRS, /* u32 */
50 MPTCP_PM_ATTR_SUBFLOWS, /* u32 */
55 #define MPTCP_PM_ATTR_MAX (__MPTCP_PM_ATTR_MAX - 1)
58 MPTCP_PM_ADDR_ATTR_UNSPEC,
60 MPTCP_PM_ADDR_ATTR_FAMILY, /* u16 */
61 MPTCP_PM_ADDR_ATTR_ID, /* u8 */
62 MPTCP_PM_ADDR_ATTR_ADDR4, /* struct in_addr */
63 MPTCP_PM_ADDR_ATTR_ADDR6, /* struct in6_addr */
64 MPTCP_PM_ADDR_ATTR_PORT, /* u16 */
65 MPTCP_PM_ADDR_ATTR_FLAGS, /* u32 */
66 MPTCP_PM_ADDR_ATTR_IF_IDX, /* s32 */
68 __MPTCP_PM_ADDR_ATTR_MAX
71 #define MPTCP_PM_ADDR_ATTR_MAX (__MPTCP_PM_ADDR_ATTR_MAX - 1)
73 #define MPTCP_PM_ADDR_FLAG_SIGNAL (1 << 0)
74 #define MPTCP_PM_ADDR_FLAG_SUBFLOW (1 << 1)
75 #define MPTCP_PM_ADDR_FLAG_BACKUP (1 << 2)
80 MPTCP_PM_CMD_ADD_ADDR,
81 MPTCP_PM_CMD_DEL_ADDR,
82 MPTCP_PM_CMD_GET_ADDR,
83 MPTCP_PM_CMD_FLUSH_ADDRS,
84 MPTCP_PM_CMD_SET_LIMITS,
85 MPTCP_PM_CMD_GET_LIMITS,
86 MPTCP_PM_CMD_SET_FLAGS,
88 __MPTCP_PM_CMD_AFTER_LAST
91 #define MPTCP_INFO_FLAG_FALLBACK _BITUL(0)
92 #define MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED _BITUL(1)
96 __u8 mptcpi_add_addr_signal;
97 __u8 mptcpi_add_addr_accepted;
98 __u8 mptcpi_subflows_max;
99 __u8 mptcpi_add_addr_signal_max;
100 __u8 mptcpi_add_addr_accepted_max;
103 __u64 mptcpi_write_seq;
104 __u64 mptcpi_snd_una;
105 __u64 mptcpi_rcv_nxt;
106 __u8 mptcpi_local_addr_used;
107 __u8 mptcpi_local_addr_max;
111 * MPTCP_EVENT_CREATED: token, family, saddr4 | saddr6, daddr4 | daddr6,
113 * A new MPTCP connection has been created. It is the good time to allocate
114 * memory and send ADD_ADDR if needed. Depending on the traffic-patterns
115 * it can take a long time until the MPTCP_EVENT_ESTABLISHED is sent.
117 * MPTCP_EVENT_ESTABLISHED: token, family, saddr4 | saddr6, daddr4 | daddr6,
119 * A MPTCP connection is established (can start new subflows).
121 * MPTCP_EVENT_CLOSED: token
122 * A MPTCP connection has stopped.
124 * MPTCP_EVENT_ANNOUNCED: token, rem_id, family, daddr4 | daddr6 [, dport]
125 * A new address has been announced by the peer.
127 * MPTCP_EVENT_REMOVED: token, rem_id
128 * An address has been lost by the peer.
130 * MPTCP_EVENT_SUB_ESTABLISHED: token, family, saddr4 | saddr6,
131 * daddr4 | daddr6, sport, dport, backup,
133 * A new subflow has been established. 'error' should not be set.
135 * MPTCP_EVENT_SUB_CLOSED: token, family, saddr4 | saddr6, daddr4 | daddr6,
136 * sport, dport, backup, if_idx [, error]
137 * A subflow has been closed. An error (copy of sk_err) could be set if an
138 * error has been detected for this subflow.
140 * MPTCP_EVENT_SUB_PRIORITY: token, family, saddr4 | saddr6, daddr4 | daddr6,
141 * sport, dport, backup, if_idx [, error]
142 * The priority of a subflow has changed. 'error' should not be set.
144 enum mptcp_event_type {
145 MPTCP_EVENT_UNSPEC = 0,
146 MPTCP_EVENT_CREATED = 1,
147 MPTCP_EVENT_ESTABLISHED = 2,
148 MPTCP_EVENT_CLOSED = 3,
150 MPTCP_EVENT_ANNOUNCED = 6,
151 MPTCP_EVENT_REMOVED = 7,
153 MPTCP_EVENT_SUB_ESTABLISHED = 10,
154 MPTCP_EVENT_SUB_CLOSED = 11,
156 MPTCP_EVENT_SUB_PRIORITY = 13,
159 enum mptcp_event_attr {
160 MPTCP_ATTR_UNSPEC = 0,
162 MPTCP_ATTR_TOKEN, /* u32 */
163 MPTCP_ATTR_FAMILY, /* u16 */
164 MPTCP_ATTR_LOC_ID, /* u8 */
165 MPTCP_ATTR_REM_ID, /* u8 */
166 MPTCP_ATTR_SADDR4, /* be32 */
167 MPTCP_ATTR_SADDR6, /* struct in6_addr */
168 MPTCP_ATTR_DADDR4, /* be32 */
169 MPTCP_ATTR_DADDR6, /* struct in6_addr */
170 MPTCP_ATTR_SPORT, /* be16 */
171 MPTCP_ATTR_DPORT, /* be16 */
172 MPTCP_ATTR_BACKUP, /* u8 */
173 MPTCP_ATTR_ERROR, /* u8 */
174 MPTCP_ATTR_FLAGS, /* u16 */
175 MPTCP_ATTR_TIMEOUT, /* u32 */
176 MPTCP_ATTR_IF_IDX, /* s32 */
178 __MPTCP_ATTR_AFTER_LAST
181 #define MPTCP_ATTR_MAX (__MPTCP_ATTR_AFTER_LAST - 1)
183 #endif /* _UAPI_MPTCP_H */